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Fluent and Query Expression — Is there any benefit(s) of one over other?
...clauses)
When doing joins
Here's an example (from the LINQPad samples):
string[] fullNames = { "Anne Williams", "John Fred Smith", "Sue Green" };
var query =
from fullName in fullNames
from name in fullName.Split()
orderby fullName, name
select name + " came from " + fullName;
Now comp...
How to index into a dictionary?
...("yellow", "8")]
if you don't need access by key. (Why are your numbers strings by the way?)
In Python 3.7, normal dictionaries are ordered, so you don't need to use OrderedDict anymore (but you still can – it's basically the same type). The CPython implementation of Python 3.6 already includ...
Determine a user's timezone
...en has daylight savings. Why not use this instead: >>> date.toTimeString() "15:46:04 GMT+1200 (New Zealand Standard Time)"
– Keyo
Aug 30 '12 at 3:49
20
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Clear the cache in JavaScript
...rious other answers. In addition, see Revving Filenames: don’t use querystring for reasons not to use ?v=n as your versioning scheme.
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What does “=>” mean in PHP?
..._dump("user = $user and password = $pass");
}
Will get you this output:
string 'user = user1 and password = password1' (length=37)
string 'user = user2 and password = password2' (length=37)
(I'm using var_dump to generate a nice output, that facilitates debuging; to get a normal output, you'd u...
Why check both isset() and !empty()
...p doc(empty) you'll see this things are considered emtpy
* "" (an empty string)
* 0 (0 as an integer)
* "0" (0 as a string)
* NULL
* FALSE
* array() (an empty array)
* var $var; (a variable declared, but without a value in a class)
while isset check if the variable isset and not null which can...
Possible to iterate backwards through a foreach?
...nce could be infinite, for example:
public static IEnumerable<T> GetStringsOfIncreasingSize()
{
string ret = "";
while (true)
{
yield return ret;
ret = ret + "x";
}
}
What would you expect to happen if you tried to iterate over that in reverse?
...
nodeValue vs innerHTML and textContent. How to choose?
...word story right here.</p>
So, that second example parses the string I assign to the DOM element's innerHTML property as HTML.
This is awesome, and a big security vulnerability : )
(look up XSS if you want to know about security for this)
...
Adding a guideline to the editor in Visual Studio
...Puts a white line at column 4 and column 80. This should be the value of a string value Guides in "Text Editor" key (see bellow).
Be sure to pick a line color that will be visisble on your background. This color won't show up on the default background color in VS. This is the value for a light grey...
How to change the Text color of Menu item in Android?
...
You can change the color of the MenuItem text easily by using SpannableString instead of String.
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.your_menu, menu);
int positionOfMenuItem = 0; // or whatever...
MenuItem item = men...